Scrubbing-machine.



H. BROWN.

SGRUBBING MACHINE.

APPLIOATION FILED JAN. 2s, 1909.

Paterlsed Aug.3,1910.

3 SHEETS- H. BROWN.

SCRUBBING MACHINE.

APPLIGATION FILED .1.111.213.1909.

Patented Aug. 30, 1910.

3 SHEETS-SHEET 2.

H. BROWN.

SGRUBBING MACHINE.

APPLICATION FILED JAN'. 28, 1909.

@www

3 SHEETS-SHEET 3.

Patented Aug. 30, 1910,

HARMON BROWN, oF TELL CITY, INDiANA.'

SCRUBBING-MACHINE.

Specification of Letters Patent. Application fledJanuary 28, 199.

Patented Aug. 30, 1910. serial No. 474,677.

To all whom it may concern:

Be it known that l, Hannon BROWN, a citizen of the llnitedv States, residing at rfell City, in the county of Perry, State of Indiana, have invented'certain new and useful Improvements in Scrubbing-Machines; -and 'I do hereby declare the following to be a full, clear, and exact description of the invention, suoli will enable others skilled in the art to which it appertains to'make and use the same. f

This invention relates to scrubbingmachines, and has for one ofits objects to improve the construction and increase the eliiciency, andutility of devices of this charaeter.

Another object of the invention is to provide a simply constructed device whereby a floor may be scrubbed to remove the dirt, and the dirty water -together with the cleansing` liquid removed .and the door wiped. v

The invention Consists in certain novel features of construction scribed and shown in the drawings.

Figure 1 is a side elevation of the improved apparat-us. Fig. 2 is a plan view of the same. -Figz 3 is a longitudinal section on the line. 3-3 of Fig. Fig. 4f is a sectional illustrating its construction.

The improved device comprises an oblong base frame 1,0, of any suitable material, but preferably ot' wood. and of any required size. Supported upon one end of the frame 10 is a'tank V11 tor the cleansing liquid, and Yfor the purpose oi this description the endl of the frame upon which the tank is located will be referred to as the forward ond. `The tank is preferably formed with the'outer side vertical and the'inner side inclined, as shown, whereby a relatively contracted discharge is produced, the discharge provided with numerous relatively small apertures l2, whereby the contents of the tank will be discharged in .small tine Movably disposed in the bottom otl the tank is a sliding` Valve 123 whereby the flowv from the tank may be controlled or entirely sluit oil as desired. The valve 1:3 isprovided with an operative rod 1l. leading:r to the rear end of the frame convenient to .the hand ol.1 the operator. so that the valve can be readily operated from the rear of the machine. as hereafter explained. rlhe trame lll is mounted upon wheels i5, prefH nected at one end to the as hereafter` dedetail of the reciprocating -brush,`

- members "itl-,el T

erably so arranged that the frameruns as near to the floor as possible.

Formed in the inner faces of the side members of the frame are guideways 16. ltxtending between the side members 10 is a brush holder formed with a stationary member 17 and a. movable member 23,' the stationary member 17 being extended at its ends into the `guidewa'ys 1G. The members 17-23 constitute a brush head for holder and the bristlesv 2G are connected tween the brush holder members. The construction of the brushholder is described more fully hereinafter. A rod 18 is con member 17 and .eX- tends rearwardly and operates slidably through a transverse guide-19, the latter beingsupported by the side members 10 4.of the frame. The rod 1S is provided with diagonal braces 20`21 and with a bottom brace E22, the braces connected at their outer ends to the member 17. lly this simple means the brush holder is firmly connected to the rod, and held rigidly in position transversely of the frame. For the purpose of this description the member 17 ofthe brush holder `isreit'erred to the stationary member, while the member 23 is referred to as the movable member, the member 23 is caused to move toward or away from the member' 17. The member 23 is provided with alongitudinal recess into which the bristles 2G are inserted at their upper ends, and the two members 17--23 coupled by clamp bolts 21h-G23, the bolts Q4 being' located above the bristles 26. while the bolts (53 are located at the lower edges of the and extend through the bristles, as shown. The bolt 63 is threaded at one end and provided with a winged head 25 at the other end, so that strain can be applied to clamp the bristles firmly between the members 17--23- By 'this means also the bristles when worn or impairedA can. be renewed by simply loosening the bolt (i3 and inserting the new bristlesI and again applyino' the strain to hold the bristles in position.

lhe brush head together, 'with the brush elements are adapted to be reeiprocated by power applied to the rod 18, as hereafter explained.

halonuted `For rotation transversely of the side members ot' the. 'trame .10 is a rotary brush comprising a central drum Q7 having' journals engagruig` 1n bearings upon the frame, the brush elements .28 being connect at one end beed to the drum, as shown'. Attached to one of the journals of the rotary brush is a chain wheel 29 to receive the drive chain for operating the brush, as hereafter explained.

Mounted for rotation upon the side members of the frame 10 rearwardly of the rotary brush is a drum 30, and mounted for rotation upon standards 3l above the portion of the frame 10 are two rollers d2-53, the rollers provided withbearings 34 whereby they may be compressed toward each other to form a wringing element, as hereafter explained.

Swinging upon the side members of the frame 10 are two arms 35-36, and mount ed for rotation between the lower ends of these. arms is a-tension roller 37, the arms operatingbeneath keepers 38-39 and provided with clamp screws 40-41, so that the arms may be adjusted to any required position within the range of the keepers to adjust the roller 'vertically as may be required, the object to be hereafter explained.

Mo'hted upon the rear portion of the frame 10 is a tank 42 to receive the water extracted by the wringing element, and to this end the tank is located beneath the rollers 3233, as shown. d

Extending around the various rollers 30-32-33-37 is a wiper belt 43 formed of suitable fabric, and to enable .the under arms, extending for a considerable distance above the frame 10 and the tank 42, and are connected by a transverse hand grip member 46: One of the bracket members`,'prefer ably the one at the right, is provided with vaslongitudinal slot 47 iniwhich a stub shaft 48 is adjustably supported', the stub shaft carrying a chain wheel 49 and a crank 50. Connected to one of the journals of the roller 33 is a chain wheel 51.

Supported upon the frame 10 is a bracket device 53, fand mounted for a rotationI in this bracket is a short shaft 54 carrying` a chain wheel 55at the outer end and a crank att'he other end, the crank connected by a rod 57 to the slidablerod 18, as shown, so that the rotation of the shaft 54 will cause the reciprocation of the rod 18 and 4the brush connected therewith The pitman is detachable from the crank 56 to release the 'brush head 23 from motion when the floor is scrubbed and the brush 26 is to be elevated before rinsing`V sothat it will not touch the floor.

An endless chain 58 extends around the vate brush 26 free from floor.

various chain wheels, as shown, so that 'the' belt 23, and brush 27-28 will be rotated and the brush 26 will be reciprocated simultaneously.

The chain wheel 49, which operates as a drive wheel, should be about three times as large as the wheel 29 which actuates the rotary brush, to secure the proper speeds to the' various parts, but it will be understood 'l that these dimensions may be varied as required, and it will also be understood that it isnot desired to limit the device to any specific dimensions for the wheels.

The belt 43 may be of any suitablemat-erial but will preferably be of Turkish toweling material, as experiment has shown that this material answers the purpose admirably.

The tank 11 will preferably be supplied with water having liquid soap material therein when rst using the apparatus, and A while'the rapidly revolving brush 28 throws Y y the dirty water beneath the belt 43l as 'it passes around the roller 37 and toward the brush 28, the water being picked up by the belt and carried to the wringing element 32-33, where the water is extracted and falls into the tank 42, the cleansed belt then passing to the roller 37 again. This action thoroughly -cleans the floor and wipes it dry,

.and removes the dirt and deposits it in the tank 42 from which it may; be removed when required. The rear vtank 42 is pro'- vided with a receiving chute or hopper 64 and is detachably supported upon the' frame 410 and retained in place by hooks 65. The V roller `37 as above not-ed, may be adjusted to increase or decrease the tension of thefbelt 43 and cause it to bear with any required degree of pressure upon the floor, as will be obvious. The pitman is detachably connected to crank 56 so that it may be removed when it is required to operate the rotary brush 28 independently of the reciprocating brush 26. By this means after the scrubbing action is completed and it is desired to wipe the floor, the pitman 57 is detached' and the wing nuts on brush head are loosened to ele- This is an important feature of the invention and adds materially to its utility vand etiiciency.

The improved device is simple in construction, can be inexpensively manufactured, and operates thoroughly. The operating mechanism 1s located entirely upon one side of the frame 10, so thatthe' other side -may be operated close to the Walls of the room, and thus reach every portion of the loor.

The improved device is particularly applicable to the scrubbing of large floors of halls and like rooms, such as depots and the like.

That is claimed, is

In an apparatus ofthe class described, a

y supporting frame having' gudeways in its side members, a brush holder comprising a movable memberand a stationary member with the stationary member extending at its expeditiously and ends into the guidewvays and slidable therein, a guide rod extending from said brush holder,^a guide bar extending transversely of said frame and through Which said guide rod passes, a shaft mounted for rotation upon said frame and provided with a crank, al connecting rod between said crank and 'guide rod, and means for rotating'said shaft.

In testimony whereof, I afx my signature, in presence of two Witnesses.

HARMoN BROWN.

Witnesses:

En L. DAVIS, GEO. F. DAVIS. 

